Skip to main content
. 2003 Jul 1;112(1):25–27. doi: 10.1172/JCI19095

Figure 1.

Figure 1

The donor graft contains both mature immune cells and primitive HSCs. T cells facilitate engraftment, protect against infection, and mediate an antileukemic effect. However, they may also initiate GVHD, a potentially fatal transplant complication. HSCs restore hematopoiesis and native immunity, the latter process requiring education of immune cells in the host thymus.